Notes for mariadb-10.5 - reproducible builds result

Version annotated: 10.5.8-3
Comments: Captures date and time embedded with BUILD_GIT_DATE, seems to
respect SOURCE_DATE_EPOCH but incorrectly handles timezone.
 

Our notes about issues affecting packages are stored in notes.git and are targeted at packages in Debian in 'unstable/amd64' (unless they say otherwise).